4 edition of Locating and estimating air emissions from sources of 1,3-butadiene found in the catalog.
Locating and estimating air emissions from sources of 1,3-butadiene
by Office of Air Quality and Planning Standards, Office of Air and Radiation, U.S. Environmental Protection Agency in Research Triangle Park, N.C
Written in English
|Contributions||United States. Environmental Protection Agency. Office of Air Quality Planning and Standards|
|The Physical Object|
Motor vehicle exhaust is a constant source of 1,3-butadiene. Although 1,3-butadiene breaks down quickly in the atmosphere, it is usually found in ambient air at low levels in urban and suburban areas. Acute (short-term) exposure to 1,3-butadiene by inhalation in humans results in irritation of the eyes, nasal passages, throat, and lungs. Relative contributions of different type of emissions and chemical reactions to 1,3-butadiene concentrations were examined, the highest contribution was found to be from industrial emission.
A relationship between isoprene and 1,3-butadiene mixing ratios was established to separate the anthropogenic and biogenic fractions of the measured isoprene in London air in both urban background (Eltham) and urban traffic (Marylebone Road) areas over two decades (–). The average daytime biogenic isoprene mixing ratios over this period reached ± ppb (Marylebone Cited by: 3. As described in the Proposed Designation of 1,3-Butadiene (CASRN ) as a High-Priority Substance for Risk Evaluation (U.S. EPA ), EPA considered reasonably available information from peer-reviewed assessments and databases to identify potential human health hazards for 1,3-butadiene.
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Sources of butadiene emissions on a national level are on-road mobile (47%) and off-road mobile (35%). Table ES-1 illustrates the national emissions estimates developed for the more predominant butadiene categories.
The main butadiene air emissions sources are on-road mobile, off-road mobile, biomass burning, butadiene users, and petroleum refining. This document deals specifically with 1,3-butadiene, commonly referred to as butadiene. Its intended audience includes Federal, State, and local air pollution personnel and others who are interested in locating potential emitters of 1,3-butadiene and estimating their air emissions.
After reaction, unreacted 1,3-butadiene and ethylene, along with1,4-hexadiene and by-products, are flashed from the catalyst and solvent. The maximum temperature in the process is approximately °F. The catalystsolution is pumped back to the reactor; vaporized components are sent to astripper column.
Get this from a library. Locating and estimating air emissions from sources of 1,3-butadiene. [United States. Environmental Protection Agency. Office of Air Quality Planning and Standards.;]. 30 rows This report series, titled Locating and Estimating Air Toxic Emissions from Sources of.
Locating and Estimating Air Emissions from Sources of 1,3-Butadiene. U.S. Environmental Agency, Office of Air Quality Planning and Standards Report EPA/R Google ScholarCited by: 1,3-Butadiene Hazard Summary Motor vehicle exhaust is a constant source of 1,3-butadiene.
Although 1,3-butadiene breaks down quickly in the atmosphere, it is usually found in ambient air at low levels in urban and suburban areas. Acute (short-term) exposure to 1,3-butadiene by inhalation in humans results in irritation of the eyes, nasal.
EPA/R LOCATING AND ESTIMATING AIR EMISSIONS FROM SOURCES OF METHYL CHLOROFORM Office of Air Quality Planning and Standards U.S. Environmental Protection Agency Research Triangle Park, North Carolina February Substance EPA Publication Number 1,3-Butadiene EPA/ Chromium (supplement) EPA/ OVERVIEW OF PRODUCTION AND USE The total annual capacity of toluene manufacturing facilities in the United States, the Virgin Islands, and Puerto Rico was 5, megagrams (1, million gallons) in The majority of toluene ( percent) is produced from petroleum fractions.
air emissions of MEK by providing a compilation of available information on sources and emissions of this substance. MEK is a colorless organic liquid with an acetone-like odor. In the U.S., MEK is produced using dehydrogenation of secondary butyl alcohol (approximately 86%) and as a by-product of butane oxidation (remaining 14%).
EPA, Locating and Estimating Air Emissions from Sources of 1,3-Butadiene. Office of Air Quality Planning and Standards, Office of Air and Radiation, US Environmental Protection Agency, Research Triangle Park, NCEPA/RCited by: Locating & Estimating (L&E) Documents This report series, titled Locating and Estimating Air Toxic Emissions from Sources of (source category or substance) characterizes the source categories for which emissions of a toxic substance have been identified.
These volumes include general descriptions of the emitting processes, identifying potential release points and emission factors. At most sites, these levels are driven by emissions from motor vehicles.
Occasionally emissions of 1,3-butadiene from industrial sources may elevate 1,3-butadiene concentrations to several tens of ppb. Trend analysis of the data suggests that ambient concentrations of 1,3-butadiene in the UK are declining at about 10% per by: EPA/R September LOCATING AND ESTIMATING AIR EMISSIONS FROM SOURCES OF MERCURY AND MERCURY COMPOUNDS By Ms.
Robin Jones Dr. Tom Lapp Dr. Dennis Wallce Midwest Research Institute Gary, North Carolina Contract Number D EPA Project Officer: Anne A.
Pope U. ENVIRONMENTAL PROTECTION AGENCY Office Of Air and Radiation Office Of Air. NC EPA/R March Air xvEPA LOCATING AND ESTIMATING AIR EMISSIONS FROM SOURCES OF METHYL ETHYL KETONE EPA/R LOCATING AND ESTIMATING AIR EMISSIONS FROM SOURCES OF METHYL ETHYL KETONE Office of Air Quality Planning and Standards U.S.
Environmental Protection Agency Research Triangle Park, North. Introduction. 1,3-Butadiene is one of the largest produced bulk chemicals and is a significant atmospheric pollutant, carcinogen, and is primarily an anthropogenic hydrocarbon, emitted predominantly from automobile exhaust, open burning and direct industrial the atmosphere, 1,3-butadiene reacts with radical species like OH, Cl, NO 3, as well as ozone, although its Cited by: 3.
The observed profiles for experiments A and C were similar, with that for experiment A shown in Fig. fits of the data symbols for HCOOH, HNO 3, NO 2 and 1,3-butadiene show trends in data only.
The initial NO x concentration was ppbv. The consumption of 1,3-butadiene began almost immediately, its concentration decreased steadily until s after which it reacted more by: EPA, “Locating and Estimating Air Em issions from Sources of 1, 3-butadiene,” EPA- /R, Office of Air Quality Planning and Standards, U.S.
Environmental Protection Agency, Research. 1,3-Butadiene is present at low levels in indoor and outdoor air throughout the country. Sources include motor vehicle emissions and the manufacture of plastics and synthetic rubbers.
The substance is carcinogenic and genotoxic in animals. It may be carcinogenic in humans. By improving the transfer efficiencies of the spray guns used to apply gel coat and resin, styrene emissions due to overspray can be reduced to 42 percent for gel coat and 33 percent for resin spray layup.9Another option is the use of VS resins which may reduce styrene emissions by File Size: KB.
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.1,3-butadiene afterbecause of more external taxi population with high emission rate ( to times higher than CNG taxis) technology (ARAI, ).
Beforepetrol driven three Mobile sources are among the largest contributors of four hazardous air pollutants--benzene, 1,3-butadiene, acetaldehyde, and formaldehyde--in urban areas.